media/libjpeg/1050342.diff is no longer necessary and a correction
appears to have been made in the library. Chromium no longer uses this
patch either.

media/libjpeg/assembly-tables.diff and media/libjpeg/externalize-table.diff
require significant changes in order to apply. This may be done in a
future followup patch, but is deemed less important than updating
libjpeg-turbo.

With these patches, an update to libjpeg-turbo 2.1.1 should apply
cleanly and build.

Differential Revision: https://phabricator.services.mozilla.com/D125458